Kanalog outputs sometimes stop working...


Results 1 to 4 of 4

Thread: Kanalog outputs sometimes stop working...

  1. #1
    Registered
    Join Date
    May 2012
    Location
    canada
    Posts
    270
    Downloads
    0
    Uploads
    0

    Default Kanalog outputs sometimes stop working...

    Hi Tom, im running into an occasional problem with my mill since the last kmotioncnc upgrade. I've ran into this twice now, and each time it was running a batch of parts, everything running fine with several parts made and then suddenly a toolchange times out because the drawbar cylinder isnt being turned on. At this point my spindle will not start either. Seems like several of the kanalog relay driver outputs stop working. I am able to retract my toolchanger which is controlled by a konnect board, so these outputs still work.

    Its fairly easy to fix, all i have to do is run the init file again and everything is fine. Any idea what could be causing this? The fact that running the init file again gets rid of the problem almost suggests an error in my code, but my code has been working for a while and the fact that its happening suddenly after running several cycles seems to suggest something else too.

    Also, I added a 4th axis and custom screen during my last upgrade as well.

    Similar Threads:


  2. #2
    Gold Member TomKerekes's Avatar
    Join Date
    May 2006
    Location
    USA
    Posts
    2805
    Downloads
    0
    Uploads
    0

    Default Re: Kanalog outputs sometimes stop working...

    Hi mmurrary70,

    When the problem occurs before re-initializing you might determine the reason the IO isn't working. Did you try toggling the IO with the digital IO screen? Is the bit shown set on the screen but physically not? Did you check the pin voltage and supply voltages?

    I can't think of a way Kanalog relay drivers would stop responding. Unless Kanalog communication has somehow stopped. Is the Kanalog charge pump Enable LED on? Or if a Program was continuously writing to the IO. Halt all Programs and then check if the IO works.

    If you post the code we can look it over.

    Regards

    TK
    http://dynomotion.com


  3. #3
    Registered
    Join Date
    May 2012
    Location
    canada
    Posts
    270
    Downloads
    0
    Uploads
    0

    Default Re: Kanalog outputs sometimes stop working...

    Sorry I dont have more info. I need to do more testing for sure next time it happens. It only did it twice, the first time i didnt really know what was going on, and second time it happened it was in the middle of a rush job so I had no time to test then. I have a fair bit of work with the mill next couple weeks so ill report back more info next time it happens.

    Where exactly is the charge pump enable led? All the axes still moved fine, and also worked with mpg so still must have been communication with kanalog.



  4. #4
    Gold Member TomKerekes's Avatar
    Join Date
    May 2006
    Location
    USA
    Posts
    2805
    Downloads
    0
    Uploads
    0

    Default Re: Kanalog outputs sometimes stop working...

    Hi mmurrary70,

    Where exactly is the charge pump enable led?
    There is only one LED on Kanalog D7. At the bottom right corner of the board near JP15.

    All the axes still moved fine, and also worked with mpg so still must have been communication with kanalog.
    I believe that is correct.

    Regards

    TK
    http://dynomotion.com


Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  


About CNCzone.com

    We are the largest and most active discussion forum for manufacturing industry. The site is 100% free to join and use, so join today!

Follow us on


Our Brands

Kanalog outputs sometimes stop working...

Kanalog outputs sometimes stop working...